var news = new Ext.form.FormPanel({
    baseCls: 'x-plain',
    labelWidth: 55,
    url:'save-form.php',
    defaultType: 'textfield',
    title:'News',
    viewConfig: { forceFit:true },
    bodyStyle:'padding:5px;',
    width:600,
    height:300,
    frame:true,

    items: [{
        fieldLabel: 'Send To',
        name: 'to',
        anchor:'100%'  // anchor width by percentage
    },{
        fieldLabel: 'Subject',
        name: 'subject',
        anchor: '100%'  // anchor width by percentage
    }, {
            xtype: 'textarea',
            hideLabel: true,
            name: 'msg',
            anchor: '100% -53'  // anchor width by percentage and height by raw adjustment
        }],
  buttons: [{text:'Save'},{text:'Cancel'}],
  buttonAlign:'center'
});